I am giving this some thought, do I want them to be landing pads..
I been playing with the idea of just making them hatches for cargo bays,
Deck 8 and Deck 9 ? And moving the landing pads further down.

And the Side Hatches on the Primary Hull are what I am calling for the
moment a tween deck..as the hatches are located between decks 6 and 7.

Only in use in a dock these give access to both decks to boarding crew.

I have some decks that are quite tall (due to the design of the Enterprise)
that house 2 levels (but still count as a single deck.

I think of these as maintenance levels for turbo elevators and such, so
that engineers can work around, over and under as needed…